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Flashcards in Histology (images) Deck (17)
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1

What type of cell is seen here?

purkinje fiber

2

what kind of muscle is seen here?

what distinctive feature is seen?

what molecular structure facilitates communication between cells (aka efficient electrical signal transmission)?

cardiac muscle

intercalated discs

gap junctions

3

what type of cells are seen here?

purkinje fibers

4

what structure is seen here? Jusitfy your answer.

What is the main tissue type of the structure?

valve. It is anchored to cardiac muscle tissue that is darker staining.

the valve is made of dense connective tissue usually found in the cardiac skeleton

5

Name the 5 visible orifices left to right, top to bottom:

left atrium, pulmonary artery, aorta, left ventricle, right ventricle

6

what two layers are visible in the vessel? (the lumen is at the base of this picture)

what are the darkest staining lines?

If the top visible layer is the largest in this vessel, is it an artery or a vein?

  • media at the top, intima at the bottom (with line of simple squamous endothelium at the bottom)
  • the dark staining lines are the elastic membranes
  • if the media is the largest, this is an elastic artery

7

Is this an artery or a vein? What is the prominent feature?

This is a vein because the adventitia is largest (dark intima, lighter media, longitudinal cross section of smooth muscle in adventitia)

8

What vessels are depicted here? How can you tell?

Vein to left, artery to right. Usually beside each other. Vein is irregular, artery is a circle.

9

what structure is depicted here?

a valve

10

What type of capillary is depicted here?

A discontinuous capillary (or sinusoid)

11

What two vessels are depicted here?

artery with more smooth muscle to left, vein to right.

12

aorta

large, elastic artery

13

verhoff stain of aorta

14

name 2 vessels

vein

artery

15

vena cava

large vein

extremely thick tunica adventitia

16

Normal aortic valve with three thin, delicate leaflets, empty sinuses of Valsalva and tight approximation of the
leaflets in the closed position

17

Mitral Valve (gross photographs). Fig. 1 is viewed from above from the atrium.